/Engine/Source/Runtime/Renderer/Public/PrimitiveSceneInfo.h
Allocate/Free slots for instance data in GPU-Scene
static void AllocateGPUSceneInstances ( FScene * Scene, const [TArrayView](API\Runtime\Core\Containers\TArrayView)< [FPrimitiveSceneInfo](API\Runtime\Renderer\FPrimitiveSceneInfo) * > & SceneInfos )